. one of kevin collins brothers. speaks out about the recent developments in the case. police say, this man, dan therrien is a suspect in kevin's disappearance. tonight, kron four's terisa estacio sat down with stephen collins - who shared his feelings about the new information, and what he says his family might do. if they do finally find his brother's remains. >> reporter: for stephen collins. dealing with the latest developments in his brother's case - has been an emotional roller coaster. >> at first digging, can't commit, then the findings. it is hard not to imagine what happened. steven was 15 years old when kevin disappeared. he says it is difficult to deal with the fact, he worked at the kevin collins foundation, located so close to where this man dan therrian who has been identified as a person of interest lived. but steven says he is not upset at police, he realizes tools availble now where not around back then. he also says, finding kevin's remains would bring such closure to himself, his siblings and mother. he really hopes it happens for everyone's sake. terisa estaci